Starting device for explosion-engines.



W. E. BLAIR.

STARTING DEVICE FOR EXPLOSION ENGINES. A

APPLIUATION HLD MAY 1a, 1912.

1,044,479 Patented Nov. 19,1912. K 2 ammira-'sHmm@l Q .o a u@ g n @e N *mi *l 7S QM W. E. BLAIR.

STARTING DEVICE FOR EXPLOSION ENGINES.

APPLICATION FILED MAY 18, 1912.

Patented Nov. 19, 1912,

2 SHEETS-SHEET 2.

WILLIAM n. BLAIR, Or BUFFALO,

Moron COMPANY, OF BUFFALO,

NEW YORK, ASSIGNOR TO BUFFALO GASOLENE NEW YORK, A CORPORATION OF NEW YORK.

STARTING DEVICE FOR EXPLOSION -EN GINES.

Specification of Letters Patent.

Patented Nov. 19, 1912.

Application filed May 18, 1912. Serial No. 698,212.

To all wh/om it muy concern.'

Be it known that I, l/VILLiAM E. Briana, a citizen Ozt' the United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useltul 11mprovenients in Starting Devices tor laxplosion-Engines, of which the tollowing is a specitication. y t

lThis invention relates to a distributing valve which is inore particularly designed for use in an air controlling starting device for explosion engines.

lt is the object of this invention to p i'ovide a valve for this purpose which is siniple and durable in construction, which is efticient in operation and will not wear u ii.- duly, and which can be adjusted to suit dii'- ferentconditions under which the engine may be operating. C I

ln the accompanying drawings consisting of 2 sheets: Figure 1 is a side elevation ot an explosion engine equipped with an air con-v trolling starting device embodyingl niy iinproved distributing valve. Fig. 2 isa v er-f tical transverse section of the saine in line 2 f2, Fig. 1. Fig. 3 is a longitudinal section of the distributing valve, on an enlarged scale. ligs. l, 5 and o are transverse sections in the correspondingly nunibered lines in Fig'. 8. Fig. 7 is a longitudinal section in line T-7, Fig. 5.

Similar characters oit reference indicate corresponding parts throughout the several views.

ltiough my invention is applicable to explosion engines oit various designs that shown in the drawings, for example, coniprises a base 1 a plurality ol working cylinders 21, Q2, 23, "2t, preferably four in nuiiiber, arr'l [l in a row ou the base. a main shaft 8 ampted to be rotated by the explo sive and air pressures in the cylinders and a cani sliait Al arranged lengthwise of the base and training part of the ineansfor transmitting niotion from the inain shaftto the fuel inlet and exhaust valves of the engine whereby the saine is operated explosively. y

The compressed air or other fluid under pressure is preferably stored in a tank or reservoir and iiiay be charged by an air pump having' its barrel 6 connected with the storage tank bye ipe 7 containing a check\ valve 8, and is p anger 9 operated by an' eccentric 10 oiilthe main shaft and a strap l j i l 11 surrounding the eccentric and connected with the plunger, as show'ii in Figs. 1 and 2. Excess pressure in the storage tank is prevented byf'providing the saine with a safety valve 12 ulliich blows oil automatically when the pressure in the tank exceeds a'predeterniined limit. The compressed air is withdrawn from the storage tank through a delivery pipe 13 containing a Vcheck valve 14.

he form of valve shown in Figs. 3 7 for distributing the compressed air successively to thel several.v engine cylinders in accordance with my invention is constructed as follows: This distributing valve coinprises a casing' having; a body 15 which contains a cylindrical air distributing' chamber 16 in its front part and a cover or head 17 which closes the front end ot' the' chamber and is detachably connected with the body by bolts 1S, as shown, yor otherwise. The body is supported troni the traine of the en- ,Q'ine by a bracket 19 and th(T saine is provided with an axial'bearing 20 which Opens into the inner end ot' the cylindrical chainbei' thereof and receives the adjacent end of the cani shat't et. The delivery pipe 13 of the air storage tank communicatesl with the trout cud of the distributingv chamber 16, lin'eterably, b v connectingthis pipe with the central part of the head thereof. The body ot' the distributing' vvalve is provided'in the bottoni olI its distributing' eliainbei' with a plurality ot distributing ports 2l, Q2. Q3, Q4 one for each ot the t'our engine cylinders, these ports being` arranged equidistant in an annular row concentrically around the axis of the Cain shaft and opening' at their outer ends through the sides of the valve body where they are connected respectively with the tour engine cylinders by distributingr pipes 25, 26, 27, 28.

29 represents a rotatable valve disk engagging' with the bot-toni of the valve charnici' and provided with a single curved port 30 whereby, on turning,` this disk the interior ofthe valve' chamber is placed in register with `the distributing' ports 21, 22, 23, 24 successively. On 'its rear side the valve disk is provided centrally with a coupling shank or stem 31 ot cylindrical form which is journaled in the inner end of the bearing '20. This valve disk is compelled to turn with the cani shaft but is free to move axially toward its seatonvthe bottom of the vavve.

chamber in case o-'E wear by acoupling--wh' h preferably consists of a. mortise 32 formed on the end of one of these parts and-a tenon 33 engagingwith said mortise and formed on the opposing ,end of the other .of said parts. As shown'in Figs. 3 and 7 the mortise is formed on the end of the cam shaft and the tenon is formed onthe stem of the distributing valve disk. By this means a driving connection ismaintained between the cam shaft and the distributing valve disk whereby the lat-ter is always free to engage fully against its seat so as to prevent leakage and at the same time this disk is always turned by the cam shaft and remains in the proper position relatively to the distributing ports.

In order to permit of regulating the timing of the distributing valve disk to suit different conditions a regulating device is provided comprising a regulating disk 34- engagin'g its rear side with the front side of the valve disk while the front side of the regulating disk engages at the margin thereof with' the cover or head of the valve casing. The regulating disk is provided with a plurality of regulating ports 35, 36, 37, 38 which are arranged in an annular row and which are adapted to be arranged either in alinement with the distributing ports 21,

22, 23, 24, respectively, or out of alinements with said mentioned ports.

As the valve disk turns its port 30 open ates to place the companion ports' of the regulating disk and valve casing successively in communication with each other in pairs so that the compressed air from the storage tankv enteringl the valve chamber passes from the latter successively through the several pairs of corresponding ports in the regulating disk and casing 'and through the valve disk and isconducted by the companion distributing pipes successively to the firing ends of the several Working engine cylinders. pressure 'is f fthus produced successively a ainst the 'istons in t-he several engine c l inders whereby the engine is started preparatory to continuing'the running of the same by' explosive fuel.

Upon turning the regulating disk so that its ports are in line with those of the valve casing the port of the valve disk will communicate simultaneously with the com panion regulating and distributing ports of theseveral pa'irs'and thereby admit compressed air to vthe several engine cylinders at what may be regarded as the normal time under the conditions which the engine is Working.

When the regulating 'ports and distributing ports of each pair are in full register the same are placed in communication during the longest period of time by the curved port of the valve disk so that the air pressure is utilized to the maximum extent for starting the engine. Upon turning the tota/ive v regulating ldisk b'ackwardiynthe 'port of the valve disk will register with V the regulating ports in advance of the normal time and cut the same oit earlier from the corresponding distributing ports, while upon lturning the regulating disk forwardly the registration of the port-of the valve disk with the Aorts 'of the regulating disk Will be delaye beyond the normal and the cutting 0E of the compressed .air supply to the engine cylinders will be correspondingly delayed. rlhe admission of the compressed air to the cylinders of the engine can by thisgineans be timed and the quantity of air controlledA as pest suits `the engine on which this deviceis installed. 'When the regulating disk is turned so that its ports are either forwardly or backwardly out of alinement with the distributing ports the period of time during which the corresponding regulating and distributing ports are placed in communication with each other is reduced and the admission of compressed air to the engine cylinders is therefore reduced or throttled accordingly. Y

Various means may be employed for ad justing the regulating disk and holding the same in position ai'ter adjustment9 those shown in the drawings being suitable vand consisting of one or more longitudinal locking pins 39 arranged on the head or cover ,of the casing adjacent to the bore thereorl1 and one or more sets of .locking notches or openings 40 arranged circumterentially in the periphery of the regulating disk and each pin adapted to be engaged with one or the other of the notches of one of the sets, according to the particular timing suited to produce the desired result. This distributing valve is very simple in construction, the' same is not liable to leak or get out of order and the same can be easily dismembered and assembled for inspection7 adjustment and repairing.

I claim as my invention:

1.' A fluid controlling starting device for explosion engines comprising a valve casing having a port, a movable valve disk arranged in said casing and having av portl adapted to register with the port of the casing, and an adjustable regulating disk arranged in the casing on that side of the valve disk opposite to the port of the casing and having a port adapted tov register With the port of the valve disk.

2. A' fluid controllingstarting device' for best' explosion engines comprising a valvecasing.

having an internal valve seat and an annul .Y

lar row of fluid distributing ports, a rotatable valve disk arranged in the casing and engaging its rear vside with said valve seat and having a port adapted to register successively withsaid distributing ports., and an adjustable regulatin said casing and' engaging with thetront disk arranged in side of said valve disk and having a plurality of regulating ports which are adapted to be plaeedin communication with the re spective distributing ports by the port of said valve disk.

3. A tluid'controlling starting device for explosion engines comprising a valve casing having an internal valve seat and an annular row of fluid distributing ports, a r0tatable valve disk' arranged in the casing and engaging its rear side with said valve seat and having a port adapted to register sucleessively with said distril'iuting ports, an adjustable regulating disk arranged in said casing and engaging with the i'ront side of said Valve disk and having a plurality of regulating ports which are adapted to `be placed in communication with the respective distributing ports by the port of said valve disk, and means for adjusting said regulating disk about its axis. Y

4. A liuid controlling starting device for explosion engines comprising a valve casing having an internal valve seat and an annuregulating ports which are adapted to be I placed in eommunication'vvith the respective distributing ports by the port of said valve disk, and means for adjusting said regulating disk about its axis comprising a locking pin arranged on the casing and adapted to engage with one or another of a circumferential row of notches in the periphery of said regulating disk.

Witness my hand this 16th day of May, 1912. l

WILLIAM E'. BLAIR.

Witnesses:

A. F. Donn, CHAs. S. ALT. 

